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diff --git a/lib/usbhost/USB_Host_Shield_2.0/max_LCD.cpp b/lib/usbhost/USB_Host_Shield_2.0/max_LCD.cpp
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+/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
+
+This software may be distributed and modified under the terms of the GNU
+General Public License version 2 (GPL2) as published by the Free Software
+Foundation and appearing in the file GPL2.TXT included in the packaging of
+this file. Please note that GPL2 Section 2[b] requires that all works based
+on this software must also be made publicly available under the terms of
+the GPL2 ("Copyleft").
+
+Contact information
+-------------------
+
+Circuits At Home, LTD
+Web : http://www.circuitsathome.com
+e-mail : support@circuitsathome.com
+ */
+#include "max_LCD.h"
+#include <string.h>
+
+// pin definition and set/clear
+
+#define RS 0x04 // RS pin
+#define E 0x08 // E pin
+
+#define SET_RS lcdPins |= RS
+#define CLR_RS lcdPins &= ~RS
+#define SET_E lcdPins |= E
+#define CLR_E lcdPins &= ~E
+
+#define SENDlcdPins() pUsb->gpioWr( lcdPins )
+
+#define LCD_sendcmd(a) { CLR_RS; \
+ sendbyte(a); \
+ }
+
+#define LCD_sendchar(a) { SET_RS; \
+ sendbyte(a); \
+ }
+
+static byte lcdPins; //copy of LCD pins
+
+Max_LCD::Max_LCD(USB *pusb) : pUsb(pusb) {
+ lcdPins = 0;
+}
+
+void Max_LCD::init() {
+ _displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
+
+ // MAX3421E::gpioWr(0x55);
+
+ begin(16, 1);
+}
+
+void Max_LCD::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
+ if(lines > 1) {
+ _displayfunction |= LCD_2LINE;
+ }
+ _numlines = lines;
+ _currline = 0;
+
+ // for some 1 line displays you can select a 10 pixel high font
+ if((dotsize != 0) && (lines == 1)) {
+ _displayfunction |= LCD_5x10DOTS;
+ }
+
+ // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
+ // according to datasheet, we need at least 40ms after power rises above 2.7V
+ // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
+ delayMicroseconds(50000);
+ lcdPins = 0x30;
+ SET_E;
+ SENDlcdPins();
+ CLR_E;
+ SENDlcdPins();
+ delayMicroseconds(10000); // wait min 4.1ms
+ //second try
+ SET_E;
+ SENDlcdPins();
+ CLR_E;
+ SENDlcdPins();
+ delayMicroseconds(10000); // wait min 4.1ms
+ // third go!
+ SET_E;
+ SENDlcdPins();
+ CLR_E;
+ SENDlcdPins();
+ delayMicroseconds(10000);
+ // finally, set to 4-bit interface
+ lcdPins = 0x20;
+ //SET_RS;
+ SET_E;
+ SENDlcdPins();
+ //CLR_RS;
+ CLR_E;
+ SENDlcdPins();
+ delayMicroseconds(10000);
+ // finally, set # lines, font size, etc.
+ command(LCD_FUNCTIONSET | _displayfunction);
+
+ // turn the display on with no cursor or blinking default
+ _displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;
+ display();
+
+ // clear it off
+ clear();
+
+ // Initialize to default text direction (for romance languages)
+ _displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT;
+ // set the entry mode
+ command(LCD_ENTRYMODESET | _displaymode);
+}
+
+/********** high level commands, for the user! */
+void Max_LCD::clear() {
+ command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero
+ delayMicroseconds(2000); // this command takes a long time!
+}
+
+void Max_LCD::home() {
+ command(LCD_RETURNHOME); // set cursor position to zero
+ delayMicroseconds(2000); // this command takes a long time!
+}
+
+void Max_LCD::setCursor(uint8_t col, uint8_t row) {
+ int row_offsets[] = {0x00, 0x40, 0x14, 0x54};
+ if(row > _numlines) {
+ row = _numlines - 1; // we count rows starting w/0
+ }
+
+ command(LCD_SETDDRAMADDR | (col + row_offsets[row]));
+}
+
+// Turn the display on/off (quickly)
+
+void Max_LCD::noDisplay() {
+ _displaycontrol &= ~LCD_DISPLAYON;
+ command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+void Max_LCD::display() {
+ _displaycontrol |= LCD_DISPLAYON;
+ command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+// Turns the underline cursor on/off
+
+void Max_LCD::noCursor() {
+ _displaycontrol &= ~LCD_CURSORON;
+ command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+void Max_LCD::cursor() {
+ _displaycontrol |= LCD_CURSORON;
+ command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+
+// Turn on and off the blinking cursor
+
+void Max_LCD::noBlink() {
+ _displaycontrol &= ~LCD_BLINKON;
+ command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+void Max_LCD::blink() {
+ _displaycontrol |= LCD_BLINKON;
+ command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+// These commands scroll the display without changing the RAM
+
+void Max_LCD::scrollDisplayLeft(void) {
+ command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT);
+}
+
+void Max_LCD::scrollDisplayRight(void) {
+ command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT);
+}
+
+// This is for text that flows Left to Right
+
+void Max_LCD::leftToRight(void) {
+ _displaymode |= LCD_ENTRYLEFT;
+ command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// This is for text that flows Right to Left
+
+void Max_LCD::rightToLeft(void) {
+ _displaymode &= ~LCD_ENTRYLEFT;
+ command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// This will 'right justify' text from the cursor
+
+void Max_LCD::autoscroll(void) {
+ _displaymode |= LCD_ENTRYSHIFTINCREMENT;
+ command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// This will 'left justify' text from the cursor
+
+void Max_LCD::noAutoscroll(void) {
+ _displaymode &= ~LCD_ENTRYSHIFTINCREMENT;
+ command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// Allows us to fill the first 8 CGRAM locations
+// with custom characters
+
+void Max_LCD::createChar(uint8_t location, uint8_t charmap[]) {
+ location &= 0x7; // we only have 8 locations 0-7
+ command(LCD_SETCGRAMADDR | (location << 3));
+ for(int i = 0; i < 8; i++) {
+ write(charmap[i]);
+ }
+}
+
+/*********** mid level commands, for sending data/cmds */
+
+inline void Max_LCD::command(uint8_t value) {
+ LCD_sendcmd(value);
+ delayMicroseconds(100);
+}
+
+#if defined(ARDUINO) && ARDUINO >=100
+
+inline size_t Max_LCD::write(uint8_t value) {
+ LCD_sendchar(value);
+ return 1; // Assume success
+}
+#else
+
+inline void Max_LCD::write(uint8_t value) {
+ LCD_sendchar(value);
+}
+#endif
+
+void Max_LCD::sendbyte(uint8_t val) {
+ lcdPins &= 0x0f; //prepare place for the upper nibble
+ lcdPins |= (val & 0xf0); //copy upper nibble to LCD variable
+ SET_E; //send
+ SENDlcdPins();
+ delayMicroseconds(2);
+ CLR_E;
+ delayMicroseconds(2);
+ SENDlcdPins();
+ lcdPins &= 0x0f; //prepare place for the lower nibble
+ lcdPins |= (val << 4) & 0xf0; //copy lower nibble to LCD variable
+ SET_E; //send
+ SENDlcdPins();
+ CLR_E;
+ SENDlcdPins();
+ delayMicroseconds(100);
+}